Its best to track if you have the Gift of the Titans buff so you can freely dispel the magic debuff from players without getting 5 Pride. When Norushen dies, just communicate with your other healers about who has to dispel next so you don't get your pride too high and start pulsing on your raid.

I did this encounter as Discipline and used Mindbender, Power Infusion, and Divine Star (we used a stacking strategy).